Sewing-machine shuttle



(No Model.)

J. R. HEBERT.

SEWING MACHINE SHUTTLE. No. 268,229. Patented Nov. 28, 1882;.

772270055 5.6 ma/sw4/ fo 7L4 92 WW UNITED STATES PATENT OFFICE.

. JOSEPH It. HEBERT, OF BROOKLYN, NEW YORK, ASSIGNOR TO ELIAS A.

WILKINSON, OF NEWARK, NEW JERSEY.

SEWING-MACHINE SHUTTLE.

SPECIFICATION forming parttof Letters Patent No. 268,229, dated November 28, 1882,

(X0 model.)

To all whom it may concern:

Be it known that I, JosnyH R. HEBERI, of Brooklyn, New York, have invented a new and useful improvement in Shuttles tor Sewing- Machines, described in this specification and the drawings thereof.

The invention consists in improvements relating to the shell and tension-spring.

In the form of construction shown, Figure 1 is a top view .of the invention. Fig. 2 is a view, partly side and partly in section. Fig. 3 is a perspective view of the tension-spring. Fig. 4 is an end view of the improvement.

In the form of construction shownthe tension-spring A is secured to the open-ended shell B by a downward projection, a, on the tension-spring entering a slot, 1), in the front end of the shuttle, and-a screw, 0, having a conical point, screwed into a hole, t, in the side of the shuttle and entering a hole, u. in the projection a on the tension-spring. The tension-spring has a free thread-guide, d, bent down at the point e to hook over the end of the shuttle or in a recess, 0, therein, and also has the end as of the body fof the tensionspiing bent down to hook into a hole, 5/, in the shuttle, and a thread-tongue, h, bent down intoadepression, s, in the shuttle,andathread' bend, it, in its shank, forming an opening between the spring and the shell to receive the thread. The shuttle is adapted to receivea bobbin containing thread through its open end B. It is threaded by passing the thread from the bobbin as it is being placed in the shuttle out through the oblique thread-slotmand under the tension-spring A at its threadbend a. The thread will then be drawn back over the thread-tongue h and under the threadguided. The tension of the spring on the thread is regulated by the screw 0, the conical point of whicluwhen the screw is turuedin the countersink t, will sufficiently change the position of the spring for the purpose. The thread-slot m also serves to show when the thread is about used up on the bobbin. The thread-hole 0 is for the purpose of receiving the thread sometimeswhen unusual tension is required.

The details of construction may be varied within the scope of my improvement. For example, the thread-hole 0 may be dispensed with, the thread-slot varied, and the tensionspriug be otherwise held to the shell.

I claim as my invention 1. The combination of shell B, having slot 1), recess 0, hole g, depression 8, thread-slot m, and countersink t, with the tension-spring A, having body f, projection a, hole u, thread guide 01, point 2:, end a, thread-tongue h, and thread-bend n, and the set-screw 0, having cortical point, substantially as set forth.

2. The combination of shell B, having slot 1), hole g, depression .9, thread-slot m, and countersink t, with the tension-spring A, having body .f, projection a, hole at, thread-guide d,

point 'v,.end 0c,'thread-tougue h, and set-screw screw 0, having a conical point, substantially as set forth.

4. The combination of ashuttle-shell having an open end and an oblique thread-slot with a tension-spring havinga body, a thread-guide,

and a thread-tongue, the thread-tongue projecting toward the shell, the body having a thread-bend in its shank, and the body and thread-guide separated at theirprojectingends, and a set-screw to hold the spring to the shell and regulate the tension, substantially as set forth.

5. The combination, with an open -ended shuttle-shell having a thread-slot, ot a tensionspring having a body and a thread-guide separated at their projecting ends, and a threadtongue projecting toward the shell, and a thread-openingbetween the shank of the spring and the shell, and a single device tor securing the spring to the shell and for regulating the tension, substantially as set forth.

In testimony whereof I hereunto subscribe my signature and affix my seal, in the presence of two attesting witnesses, on the 21st day of April, 1:582. I

JOSEPH R. HEBERT. 

